#include<graphics.h>
#include<conio.h>
int main()
{
	int step=0;
	initgraph(600,600);
	setbkcolor(YELLOW);
	cleardevice();
	setlinestyle(PS_SOLID,2);
	setcolor(RGB(0,0,0));
	int i;
	for(i=1;i<19;i++)
	{
		line(i*step,1*step,i*step,19*step);
		line(1*step,i*step,19*step,i*step);
		
	}
	getch();
	closegraph();
	return 0;
 } 
